Question

Example which illastnate
change in the colour of cactos
chemical reaction​

Answer 1

Answer:

there is no cactos reaction exist in universe

Explanation: it is an example fo change in color in chemical reaction

Color changes from blue to light green. Copper reacts with oxygen, H2O and CO2 to give copper carbonate, which changes color from brown to blue or blue green. Rusting, blackening of surfaces of cut vegetables and fruits are other examples of change of color in a chemical reaction.